Question 754698
the sides of a triangle have lengths x, 5x and 25 if the longest side is 25, what value of x makes the triangle a right triangle?

i have done this so far:
x^2+5x^2=25^2 ****** x^2 + (5x)^2 = 25^2

x^2+25x=625 ***  x^2 + 25x^2 = 625
26x^2 = 625
{{{x = sqrt(625/26)}}}
x =~ 4.9029